Analysis

  • max time kernel
    37s
  • max time network
    10s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    15-04-2021 15:57

General

  • Target

    d6904948ae99d7bf84e6af9a978c3ae6.dll

  • Size

    666KB

  • MD5

    d6904948ae99d7bf84e6af9a978c3ae6

  • SHA1

    a272ccd04db93604874c8606e4f41ad8bb212540

  • SHA256

    938f890613dc8526bb828c3de5d5c612b7c13515062fb6ca15f8abc1424f2835

  • SHA512

    dbae64e1d607c23e5779fcd3da5e8e1f8348d324b68097758d07ca31a7778d5a22ae701d5999d324063095b61c30cc34a8ca2754dc878d4f87e94cbe72f387b6

Malware Config

Extracted

Family

zloader

Botnet

nut

Campaign

13/04

C2

https://jiaayanu.com/post.php

https://investinszeklerland.eu/post.php

https://iqs-sac.com/post.php

https://jciems.in/post.php

https://jinnahofficersschool.com/post.php

https://kancagh.com/post.php

rc4.plain
rsa_pubkey.plain

Signatures

  • Zloader, Terdot, DELoader, ZeusSphinx

    Zloader is a malware strain that was initially discovered back in August 2015.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6904948ae99d7bf84e6af9a978c3ae6.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:748
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d6904948ae99d7bf84e6af9a978c3ae6.dll,#1
      2⤵
        PID:1864

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1864-60-0x0000000000000000-mapping.dmp

    • memory/1864-61-0x0000000075041000-0x0000000075043000-memory.dmp

      Filesize

      8KB

    • memory/1864-63-0x00000000744C0000-0x0000000074588000-memory.dmp

      Filesize

      800KB

    • memory/1864-62-0x00000000744C0000-0x00000000744EB000-memory.dmp

      Filesize

      172KB

    • memory/1864-64-0x00000000000C0000-0x00000000000C1000-memory.dmp

      Filesize

      4KB